Deep-well pump



y 6, 1930. D. D. BURCH 1,757,791

DEEP WELL PUMP Filed; Feb. 26, 1929 v 2 Sheets-Sheet 1 Patented May 6, 1930 UNITED STATES DONALD D. BURCH, 0F NEAR EARLSBORO, OKLAHOMA DEEP-WELL PUMP Application filed February 26, 1929. Serial No. 342,753.

This invention relates to deep well pumps, and more particularly to deep well pumps employing fluid pressure to eject the fluid from the well of the type illustrated in my prior Patent, No. 1,696,135, granted December 18, 1928, for oil well pumps.

An important object of the present invention is to improve the structure of this prior patent to permit more efficient lubrication of the relatively rotatable parts disposed within the well and controlling the operations of fluid ejection.

A further object of the invention is to provide a structure which may be very readily and cheaply manufactured and is readily installed in the well.

A further and more specific object of the invention is to provide a structure of the character illustrated in my prior patent above identified permitting the use of stationary cylinders and directing the discharge from these cylinders in such a manner as to insure proper lubrication of the rotating portions of the mechanism.

These and other objects I attain by the construction shown in the accompanying drawings, wherein for the purpose of illustration is shown-a preferred embodiment of my invention and wherein Figure 1 is a longitudinal sectional view through pumping apparatus constructed in accordance with myinvention;

Figure 2 is a section on the line 22 of Figure 1;

Figures 3 and 4 are sections on the lines 3-3 and 4:4 of Figure 1;

Figure 5 is a section on the line 5-5 of Figure 2;

Figure 6 is a section on the line 66 of Figure 3;

Figure Figure 3; 1

Figure 8 is a fragmentary detailview par- 7 is a section onthe line 77 of tially in section showing a means for oper-- ating the pump.

Referring now more particularly to the drawings, the numeral 10 generally desig-.

nates the casing of a well and 11 an inner stationary tube which is packed to the vgell casing, as indicated at 12, and below this packing has a screen 13 for admitting the well fluid to the lower end thereof. Within the tube, a downwardly tapering seat element 14 is disposed which is adapted to receive the tapered lower end of a stationary cylinder 15. The cylinder 15 has its lower end open and immediately above this lower end is formed to provide two chambers 16 and 17, the lower ends of which have ports 18 communicating with the lower end of the cylinder. These ports are controlled by downwardly seating check valves 19. The upper end wall 11* of the cylinder has a casting secured thereto, this casting being in the form of an annular flange, generally designated ,at 20, the upper end of which is exteriorly reduced, as at 21,- so that it may be packed to the tubing 11, as indicated at22.

This flange is interiorly grooved adjacent its lower end, as indicated at 23, and has formed therein pairs of vertically directed ports 24 and 25, each of which is interrupted y the groove. The ort 24 opens through the upper end of the ange while the port 25 is directed through the side of this flange and aligns with an opening 26 formed in the wall of the tubing 11. The lower ends of a pair of ports 24 and 25 are in communication with the upper end of each chamber 16 and 17 The ports 24; and 25 are circumferentially alternated and are preferably equidistantly spaced from one another.

The lower ends of the chambers are in communication with the lower ends of vertical ports 27 which open through the upper face of-the head 11 inwardly of the'flange 20, the upper ends of these ports being arranged upon a common diameter of the head. Rotatablewithin and fitting the inner face of the flange is a conduit 28, which has its lower end closed, as at 29, with the exception of a single opening or port 30 which, by rotation of the tube, may be brought into alignment with the upper end of either port 27.

Secured to the outer face of this tube and 9 operating in. the groove 23 is an annular valve element 31 having a port 32 formed therein, this port being so related "to the port 30 that when the port 30 is in communication with the upper end of a port port 32 is in communication with inder to escape and oil to enter the cylin er and fill the same for the next discharging operation. The conduit 28 is under pressure from a suitable source of air or gas pressure supply from above, the air or gas travelling downwardly therethrough and the release of the pressure is effected through rotation of the casing 28, the offset opening '30 alternately registering with an opening 27.

It will be seen that by rotating the conduit 28 through any suitable means, such as that generally indicated at 33, each cylinder will alternately be relieved to permit theentrance of fluid thereto and subjected to pressure to cause discharge of fluid therefrom. It will also be noted that since the fluidascends in the space 34 between the conduit 28 andtubing 11,'this fluid will be constantly supplied to the rotating parts which are located exteriorly of the'conduit28 and thus preserve the same against wear.

-While I have shown the lowerwall 29 0f the tube and the annular valve element 31 as each provided with a single control port, it will be obvious that this structure might readily be modified and these elements provided with a greater number of control ports than those illustrated, it being merely necessary that there be a port 32 of the annular valve element for each port 30 of the bottom.

wall. I

Since the construction illustrated is capable of a certain range of change and modification without materially departing from the spirit of the invention, I do not limit myself thereto except ashereinafter claimed.

1'. In a deep well pump and in combination, an assemblage adapted to be disposed at the bottom-of a well comprising a tubing, a cylinder disposed within and secured to the tubing ad acent the lower end thereof and having a chamber therein, a check-valved opening for placing the lower end of the chamber in communication with the interior of the tubing below said cylinder, said cylinder having a port opening through the upper end thereof and communicating at its lower end with the chamber adjacent the lower'endthereof, the upper wall of the chamberhavingports' communicating with the exterior of the tubing and with the interior of the tubing, a rotatable tube associated with the cylinder and having lishes the continuity of the port 24' tubing and to close the first named while opening the last named port of the chamber and to close the port of the cylinder while opening the last named ort and closing the first named port of the c amber.

2. In dee well pumping apparatus, a tubing, acylin er stationary within the tube and havin check-valved communication with the tube therebelow, a rotatable conduit arranged within the tubing above the cylinder, and means operated by rotation of the conduit alternately placing the interior of the chamber in communication with the interior of the conduit and with the s ace between the tubing. and conduit and p acing the chamber in communication with the exterior of the tubing.

3. .A device as claimed in claim 1 wherein the upper wall'of the cylinder has an annular flan e into which the ports of the upper wallof t e chamber extend and one of the ports opens through the outer face of the flange and the wall of the tube, the inner face of said flange having an annular groove in the wall thereof interrupting said ports and the rotatable tube has secured to the outer face thereof a member operating in said groove and having a port for alternate alignment with the ports of the flange to establish communication between the ends thereof.

4. A device as claimed in claim 1 wherein,

the upper wall of the cylinder has an annular flange into which the ports of the up er wall of the chamber extend and one of t e orts opens throu h the outer face of the ange and the wal? of the tube, the inner face of said flange having an annular groove in the wall thereof interrupting said orts and the rotatable tube has secured to t e outer face thereof a member operating in said groove and having a port for alternate alignment with the ports of the flange to establish communicationbetween the ends thereof, and the tube has a wall at its lower end operating against the upper end of the cylinder and provided with an opening aligning with the upper end of the'cy inder port once for each rotation of the rotatable tube.

- In testimony whereof I hereunto aflix my signature.

' DONALD D. BURCH.

means controlling all of said ports to alter- 

